Trivial cleanups, mostly: - remove unused methods, - remove unused fields, - remove fields that were only written to, never read, - remove useless calls to `HttpHeaders.of`
The code still compiles. I double-checked that there were no calls to the removed methods, just in case. Tier1-2 testing clean. --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - Update copyright - Remove unused debug method - Remove unused method (use Utils.asString if needed again) - Remove unused field - Remove unused field - Remove unused utils - Remove unused utility method - Remove unused MultiExchange fields - Remove unused method - Remove unused method - ... and 5 more: https://git.openjdk.org/jdk/compare/83580365...38b051aa Changes: https://git.openjdk.org/jdk/pull/33625/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=33625&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8396100 Stats: 229 lines in 18 files changed: 0 ins; 204 del; 25 mod Patch: https://git.openjdk.org/jdk/pull/33625.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/33625/head:pull/33625 PR: https://git.openjdk.org/jdk/pull/33625
